I've recently been doing some more re-texturing of HD2, just going map by map and improving the quality of whatever single player map i'm on (Probaby nothing I will release soon, due to plagiarism issues, sorry). This was alright... until i realized that with all of the new textures, my install of HD2 jumped from 2GB to 7GB. That's fine on my Desktop PC, but not if I want to play on my laptop (math class gets boring, you know).

To the point, I was wondering if it is possible to repack the Maps and Maps_U back into the .dta files, and if so, how?
Has anybody tried this? Or is the compression not even going to save me enough space to bother worrying about this?